Application of deep-sea psychrotolerant bacteria in wastewater treatment by aerobic dynamic membrane bioreactors at low temperature

Huang, Zida; Qie, Yan; Wang, Zhende; Zhang, Yuzhong; Zhou, Weizhi

doi:10.1016/j.memsci.2014.09.038

Cited by 37 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In summer, the removal rate of UV 254 was around 80 % in 33.9°C water, while the removal rate decreased to below 50 % at 5.4°C in winter [99]. The removal rates of chemical oxygen demand (COD), ammonia nitrogen (NH 3 -N), total phosphorus (TP), and total nitrogen (TN) were all reduced to some extent when the temperature changed from 25 to 5°C [100]. Therefore, the organic matter removal rate is affected by the temperature.…”

Section: Temperaturementioning

confidence: 99%

Dynamic Membrane Filtration: Formation, Filtration, Cleaning, and Applications

2017

Chem Eng & Technol

View full text Add to dashboard Cite

Applications of dynamic membrane (DM) filtration and factors affecting formation, filtration, and cleaning are introduced. DMs have been studied extensively for wastewater treatment in recent years. DM formation methods and mechanisms are explained. Effects of supporting material, deposited material, formation pressure, and pH on the DM formation are discussed in detail. The impacts of operation pressure, aeration intensity, cross-flow velocity, temperature, and other parameters on the DM filtration process are evaluated and different DM cleaning strategies are reviewed. The applications of DMs to treatments of municipal wastewater, surface water, oily water, industrial wastewater, sludge, and microalgae harvesting are discussed. Finally, possible future research directions and some guidelines for DM technology are given.

show abstract

Section: Temperaturementioning

confidence: 99%

Dynamic Membrane Filtration: Formation, Filtration, Cleaning, and Applications

2017

Chem Eng & Technol

View full text Add to dashboard Cite

show abstract

“…This indicated that spermidine produced a huge effect on species function or interaction and enhanced the biofilm formation at low temperatures. Besides, although the removal efficiencies of pollutants could be achieved by cold acclimation (10 °C), the seasonal temperature cooling in many cold regions was difficult to satisfy through long-term acclimation or constant temperature. , Therefore, despite the fact that the addition of spermidine might lead to some negative impacts on the microbial community, this study provides a flexible alternative strategy for improving bioreactor performance under various adverse conditions.…”

Section: Discussionmentioning

confidence: 99%

Improving Biofilm Formation and Bioreactor Startup at Low Temperature through Regulating Microbial Community Communication and Stability

Wang,

Lv,

Lin

et al. 2024

ACS EST Water

View full text Add to dashboard Cite

Biofilms are widespread in natural and engineering environments and are being increasingly used for pollutant treatment. However, low temperature is one of the major challenges in practice. Here, we developed an alternative strategy to enhance biofilm formation and biofilter startup at 15 °C by supplementing with spermidine, an essential substance for cell growth. A significantly increased biofilm biomass was observed in the treatment group (with spermidine), accompanied by a higher live cell ratio and biofilm matrix excretion as compared with the control (without spermidine). The bacterial communication ability, including quorum sensing and the second messenger system, was found to be enhanced in the treatment group. The bacterial secretion system and quorum sensing pathway were also significantly enriched in differential genes, and most of these genes were upregulated in the treatment group. Robustness and null model analysis revealed that spermidine bolstered microbial community stability and mitigated the dispersal limitation process, which would be conducive to biofilm development. The application of spermidine in biofilters enhanced the biomass accumulation rate and performance. Overall, our results highlighted the importance of the microbial community on biofilm formation regulation and provided a feasible strategy for the enhancement of biofilm formation in low-temperature environments.

show abstract

“…There are dependencies between some PIs and ICs; for example, TMP and BOM influence OMR [12,36,[42][43][44], but their dependencies are implicit in their PDFs, therefore we do not need to assign dependency arcs between ICs and PIs.…”

Section: Methodsmentioning

confidence: 99%

Decision Making Model for Municipal Wastewater Conventional Secondary Treatment with Bayesian Networks

Medina

Fonseca

Gallego-Alarcón

et al. 2022

Water

View full text Add to dashboard Cite

Technical, economic, regulatory, environmental, and social and political interests make the process of selecting an appropriate wastewater treatment technology complex. Although this problem has already been addressed from the dimensioning approach, our proposal in this research, a model of decision making for conventional secondary treatment of municipal wastewater through continuous-discrete, non-parametric Bayesian networks was developed. The most suitable network was structured in unit processes, independent of each other. Validation, with data in a mostly Mexican context, provided a positive predictive power of 83.5%, an excellent kappa (0.77 > 0.75), and the criterion line was surpassed with the location of the model in a receiver operating characteristic (ROC) graph, so the model can be implemented in this region. The final configuration of the Bayesian network allows the methodology to be easily extended to other types of treatments, wastewater, and to other regions.

show abstract

Application of deep-sea psychrotolerant bacteria in wastewater treatment by aerobic dynamic membrane bioreactors at low temperature

Cited by 37 publications

References 32 publications

Dynamic Membrane Filtration: Formation, Filtration, Cleaning, and Applications

Dynamic Membrane Filtration: Formation, Filtration, Cleaning, and Applications

Improving Biofilm Formation and Bioreactor Startup at Low Temperature through Regulating Microbial Community Communication and Stability

Decision Making Model for Municipal Wastewater Conventional Secondary Treatment with Bayesian Networks

Contact Info

Product

Resources

About